A butterfly of mass 1.0 g moves upward against the gravitational force with velocity `0.5ms^(-1)` and a squirrel of mass 250 g climbs the tree with velocity `0.5ms^(-1)`, then compare their power. `(g=10ms^(-2))`

Answer

The power of squirrel is more than butterfly.

Explanation

Power of the butterfly,
`P=Fv`
`=(mg)v`
`=(10^(-3)kg)xx(10ms^(-2))xx0.5ms^(-1)`
`=5xx10^(-3)W`
Power of the squirrel,
`P.=F.v.`
`=(250xx10^(-3)kg)xx(10ms^(2))xx(0.5ms^(-1))`
`=1.25kW`